Wheelwright-machine.



Patented Jan. 30, 1900.

P. A. McGRAY. WHEELWRIGHT MACHINE.

(Application filed Aug. 26, 1899.1

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Nu. M2249. Patented Jan. 30, I900. P. A. MCCRAY.

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lilwiTis STATES PATENT Trice.

PllYLANDER A. MOORAY, OF GAY, WVEST VIRGTNIA.

WHEELWRlGHT-IVIACHiNE.

SPECIFICATION forming part of Letters Patent No. 642,249, dated January 30, 1900. Application filed August 26, 1899. Serial No. 728,619. (No model.)

To ctZZ whom it may concern:

Be it known that 1, PHYLANDER A. MCCRAY, a citizen of the United States, residing at Gay, in the county of Jackson and State of West Virginia, have invented a new and useful lVheelwright-Machine, of which the following is a specification.

My invention relates to devices for setting tires upon vehicle-wheels, and more particularly to those by means of which the wheel may be rotated in the slack-tub while it is yet secured to the frame.

The object of the invention is to provide a device which shall be adjustable for different sizes of wheels and can be made cheap and efficient; and it consists in the combination and improved construction of parts of the same, as will be hereinafter more particularly set forth.

In the accompanying drawings, in which the same reference-numeral indicates a corresponding part in each of the views in which it occurs, Figure 1 is an elevation of a tiresetting device embodying my invention, the device being shown in two positions. Fig. 2 is a longitudinal sectional View of the same, showing the device in one position. Fig. 3 is a top plan view. Fig. 4c is a perspective view of one of the parts of the frame, and Fig. 5 is a plan view of a slightly-different form of the wheel-supporting frame.

Referring more particularly to the drawings, 1 indicates the main frame of my device, which may be formed in any desirable manner, but more preferably of four posts 2 and a series of side and end bars 3 and 4, the top side bars being each provided with a longitudinal slot 5. The frame is so constructed that it may be tilted upon two of the posts-as, for instance, by means of a hinge 6, by means of which the frame may be secured to the floor of the shop or other suitable support. If desired, the ends of the hinge may be extended up over the top and side posts to add to the strength and rigidity of the frame. A hook 7 at the opposite end of the frame may be pivotally secured to the floor or support in such position as to have its free end detachably secured to some portion of the device, as will be hereinafter more particularly referred to.

Secured to the top of the frame is a plat form or cross-frame 8, upon which is mounted the wheel-support 9.

The ends of the arms of the cross-frame are preferably reduced or tenoned, as shown at 10, so as to fit Within the slots 5, while the ends of the center piece of the cross-frame are supported upon the end bars of the frame, or an auxiliary support 11, secured to the under side of the top side bars adjacent to one of the end bars. The slots are of a greater length than the tenoned portions, so that the cross-frame may be moved back and forth to properly adjust the position of the wheel-support for diiferentsized wheels. Keys or wedges 12 fit within the slots between the ends thereof and the tenoned portions of the cross-frame, so as to rigidly hold the cross-frame in its adjusted position. The top of the cross-frame is preferably provided with a cruciform plate 14, which is perforated to correspond with a perforation through the frame, and also with a wearing-plate 15 upon the lower portion of the center piece of the cross-frame.

The Wheel-support 9 is rotatably mounted upon the cross-frame by means of a bolt 16, the upper end of which is swiveled within a plate 17 in the wheel-support and the lower end is screw-threaded and provided with a nut 18, by means of which it maybe secured to the cross-frame.

The wheel-support may be of any suitable form, a cylindrical head being shown at 19 and a square head being shown at 20 in Fig. 5. In the cylindrical form I prefer to provide the exterior of the cylinder with two bands 21 21, one at each end, and to provide the interior with a band 22, located intermediate the ends of the cylinder, although it might extend throughout the entire length of the cylinder. The portion of the cylinder between the bands I provide with radial slots or recesses 23, within which are fitted the tenoned ends 24 of the radial arms 25, the inner ends of the tenons abutting against the inner band 22. Suitable bolts 26 extend through the cylindrical portion into the arms and prevent the arms from being withdrawn from the slots 23. Auxiliary means for preventing the removal of the arms may be formed by means of the wearing-plates 27, which are secured to the tops of some or all of the arms and extend across the upper end of the cylinder and are secured thereto in any suitable manner, as by means of screws or nails in the usual manner.

By providing the arms with recesses 28, into which the ends of the bolts 26 project, the nuts may be tightened by means of a wrench applied thereto in said slots. The lowerend of the cylinder may be provided with a suitable wearing-plate 29,which will rest against the cruciform plate and the wearing-plate on top of the cross-frame.

Located near the lower end of the cylinder is a plate 30, from which projects a rigid hubspindle 31, the upper end of which is screwthreaded and is provided with a handlednut 32. The upper end of the spindle projects far enough above the top of the wheel-support so that the cross-plate 33 may fit between the nut 32 and the top of a dish-band 34,which is preferably placed upon the spokes of the wheel adjacent to the hub to regulate the amount of dish that is to be given to the wheel. The dish-band 34 is adapted to rest upon the spokes of the wheel adjacent to the hub-band thereof for the purpose of making the butt-ends of the spokes a little higher at the hub than at the rim, and by tightening the nut on the hub-screw this bandis adapted to give the desired dish to the wheel.

In practicing my invention the frame is secured in its upright position by hooking the free end of the hook 7 in a staple 35 near the outer end of one of the arms 25. The handled nut 32, the plate 33, and the dish-band 34. are then removed, and the wheel is placed upon the support with the rim resting upon the top of the arms. The dish-band is then placed upon the spokes adjacent to the hub and secured in the desired position relatively to the arms by means of the plate and handled nut, so as to prevent the upward movement of the hub of the wheel beyond the point desired to give the proper dish to the wheel when the tire is shrunk in position. The tire having been properly heated is now applied to the rim of the wheel, the hook is disengaged from the end of the spoke, and the entire frame, with the wheel, is tilted upon its hinge, so that the 'rim of the wheel will be thrown into the slack-tub 36. By rotating the wheel-support upon its swivel connection with the crossplate the entire length of the tire may be immersed in the water, and thereby cooled, which will cause it to shrink and be rigidly secured to the wheel. After the tire has been cooled the plate and dish-band may be removed by taking off the handled nut, which releases the wheel from its support and permits of its removal. The frame is then tilted back in its upright position and secured by the hook, ready for further use.

If it is desired to use the device for the insertion of spokes into the hub, a suitable support 37 for the outer end of the spoke is secured between two of the arms. In this manner the device is rendered more complete, as it is often very desirable to insert one or more spokes while setting the tire. Although I have only shown means for adjusting the cross-frame in two positions to adapt the de vide for use with the ordinary front and rear wheels, it is evident that by making the-slots in the top frame longer and using two or more narrow wedges the cross-arm can be adjusted to any-sized wheel which it may be desired to repair. With the larger and heavier wheels I prefer to construct the Wheel-support as above described; but for lighter wheels the square support may be used, as shown in Fig. 5, in which the central portion of the arms are formed by interlocking cross-pieces 38 and 39 and suitable side pieces 40.

Having described my invention, I claim 1. In a tire-setting device, the combination with a frame, the bottom of which is provided with hinges for securing it to a support, of a cross-frame fitted to the top of the hinged frame so as to be movable at right angles to the hinge, locking devices for firmly holding the cross -frame in variable positions relatively to the hinged frame and adapting the two frames to be adjusted simultaneously, and a wheel-support rotatably secured to the crossframe for adjustment therewith on the hinged frame, said support being free to rotate in any adjusted position of the cross-frame or the hinged frame, substantially as described.

2. In a tire-setting device, the combination with a tiltable main frame, of a cross-frame movably secured to said main frame, the lock ing-keys for firmly holding said cross-frame at different positions on the main frame, whereby the cross-frame is capable of an adjustment on the main frame independently of the adjustment of said main frame on its hinge, and a wheel-support rotatably secured upon the cross-frame and adjustable therewith on the main frame, said support being also adjustable with said cross-frame and the main frame, substantially as described.

3. In atire-setting device, the combination,

with a tilting frame, the top of which is slot-- ted horizontally uponopposite sides,of a cross= frame, the ends of the arms of which are each reduced to fit within the slots, keys for securingthe arms of the cross-frame within the slots, an auxiliary support under one end of the center piece of the cross-frame adjacent to the cross-bar of the frame, and a wheel-support rotatably secured to the cross-frame.

4. In a tire-setting device, the combination with a tiltable main frame, of a cross-frame slidably confined on the main frame, the central portion of said cross-frame being perforated and provided with a perforated plate, a wear-plate adjacent to the perforated plate, and a wheel-support secured pivotally to the cross-frame, the lower end of said wheel-support being provided with a supporting-plate and adapted to bear upon the plate of the cross-frame, substantially as described.

5. In a tire-setting device, the combination with a-tiltable frame, of a wheel-support rotatably secured tothe top thereof, said support comprising a hub and a series of radial arms IEO made fast with said hub, aspindle projecting end bands, radial arms secured Within said slots, bolts through the central piece into the ends of the arms, a spindle projecting above the top of the central piece provided with a c1amping-nut,a dish-band and a plate between the clamping-nut and the dish-band.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

PHYLANDER A. MoORAY.

Vitnesses:

O. E. GREENLEAF, E. G. GREENLEAF. 

